(3x+1)=(x-7)

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Solution for (3x+1)=(x-7) equation: 



(3x+1)=(x-7)

We move all terms to the left:

(3x+1)-((x-7))=0

We get rid of parentheses

3x-((x-7))+1=0



We calculate terms in parentheses: -((x-7)), so:

(x-7)

We get rid of parentheses

x-7

Back to the equation:

-(x-7)



We get rid of parentheses

3x-x+7+1=0

We add all the numbers together, and all the variables

2x+8=0

We move all terms containing x to the left, all other terms to the right

2x=-8

x=-8/2

x=-4

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